He ________ sleep, although he tried to, when he got on such a hunt for an idea until he had caught it.
#62950
A
wouldn’t
B
shouldn’t
C
couldn’t
D
mustn’t
推荐题目
— Can we leave the classroom now?— No, you ______. You ______ to leave until the bell rings.
#74363
A
mustn’t, are allowed
B
don’t have to, are allowed
C
needn’t, aren’t allowed
D
can’t, aren’t allowed
It is required that under no circumstances ______ betray ourselves even if there are temptations like money or beauty.
#63636
A
we will
B
should we
C
we
D
we shall
The chairman ________ hold office for five years according to the constitution.
#62206
A
might
B
could
C
need
D
shall
---- Can I watch TV now? ---- No, you ________. You _______ do your homework first.
#76429
A
can’t; can’t
B
can’t; must
C
mustn’t; can’t
D
needn’t; must
---Who’s the man over there? Is it Mr. Black?--- It _________ be him. He’s much taller.
#74268
A
may not
B
can’t
C
will not
D
mustn’t